Which of the following is not a reaction that cells use to get energy from nutrients?
Cellular respiration
Fermentation
Photosynthesis
Anaerobic respiration
Glycolysis
Photosynthesis
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"DNA footprinting" is a technique that can be used to identify:
A. a region of DNA that has been damaged by mutation. B. the position of a particular gene of a chromosome. C. the position of internally double-stranded regions in a single-stranded DNA molecule. D. the specific binding site of a repressor, polymerase, or other protein on the DNA. E. All of the choices given can be identified by this technique.
What force is responsible for the cohesiveness of water?
A) osmosis B) hydrogen bonding between water molecules C) negative pressure created by evaporation D) ionic bonding
Which situation represents an example of territorial behavior?
A) Digger wasps are able to recognize the pattern of landmarks around their nests. B) Sow bugs become more active and move around randomly if they find themselves in a dry area. C) Gannets breed in dense colonies. Each gannet defends the area within the beak's reach of its nest, but gannets feeding at sea are indifferent to each other. D) Troops of monkey species use well-defined, widely overlapping ranges. Troops avoid encountering each other and are aggressive if they meet.
Crossing two pink snapdragons yields some seeds that produce red-flowering plants, some seeds that produce white-flowering plants and some seeds that produce pink-flowering plants. If this trait operates by incomplete dominance and the allele R
represents red flowers and the allele r represents white flowers, what genotype would a plant with pink flowers have for this trait? A) rr B) RrRr C) RR D) Rr